BoP Labbeta

BoP Lab / Classes / ITS

ITS vs BS pace at every track

Lap times across years say as much about the weather as the class. % of ITS is each class's best lap as a share of ITS's on the same day, so the conditions drop out: 100% is level, less is quicker, and a move in it is the class getting faster or slower against the field.

Class · click a class to switch, + to compare alongside (up to 4)
AS+B-Spec+vsBS×EP+FA+FC+FE2+FF+FP+FV+FX+GT1+GT2+GTX+HP+ITS×P+P2+SM+SMX+SRF3+STL+STU+T1+T2+T3+T4+Show 49 inactive classes
Reference · what % is measured against
Tracks · untick to narrow
1:201:402:002:204 rule changes between Voodoo Quartre 2017 and SARRC 20204 ▾ITS race best at Majors May 2016: 1:15.165 (Greg Hartrum)ITS race best at SARRC 2020: 1:45.740 (Daniel Vallejo)ITS qualifying best at Majors May 2016: 1:15.464 (Greg Hartrum)ITS qualifying best at SARRC 2020: 1:45.279 (Daniel Vallejo)BS race best at Majors @ Thunderhill: 2:15.714 (Kyle Keenan)BS race best at Voodoo Quartre 2017: 2:06.427 (John Phillips)BS qualifying best at Majors @ Thunderhill: 2:15.069 (Kyle Keenan)BS qualifying best at Voodoo Quartre 2017: 2:06.994 (John Phillips)Thunderhill Raceway Park · Majors @ ThunderhillMajors @ Thunderhill2016Circuit of St. Louis (formerly Gateway Motorsports · Majors May 2016Majors May2016NOLA Motorsports Park · Voodoo Quartre 2017Voodoo Quartre2017Michelin Raceway Road Atlanta · SARRC 2020SARRC2020
ITSBSsolid race · dashed qualifying · slower is lower
100%4 rule changes between Voodoo Quartre 2017 and SARRC 20204 ▾ITS race best at Majors May 2016: 100.0% of ITS's (Greg Hartrum)ITS race best at SARRC 2020: 100.0% of ITS's (Daniel Vallejo)ITS qualifying best at Majors May 2016: 100.0% of ITS's (Greg Hartrum)ITS qualifying best at SARRC 2020: 100.0% of ITS's (Daniel Vallejo)Thunderhill Raceway Park · Majors @ ThunderhillMajors @ Thunderhill2016Circuit of St. Louis (formerly Gateway Motorsports · Majors May 2016Majors May2016NOLA Motorsports Park · Voodoo Quartre 2017Voodoo Quartre2017Michelin Raceway Road Atlanta · SARRC 2020SARRC2020
ITSBSsolid race · dashed qualifying · each class's best lap as a share of ITS's at the same event (the reference class, changeable above); 100% is level, less is quicker, so up the chart is quicker
EventITSBS
Qual best Race best Trap Qual best Race best Trap vs ITS % of ITS 
Michelin Raceway Road Atlanta SARRC 20202020-07-251:45.279Daniel Vallejo · fastest of 21:45.740Daniel Vallejo · fastest of 2115.1Daniel Vallejo
4 rule changes (ITS: 4)1 induction · 1 tyres & wheels · 1 weight · 1 othershowhide
  • ITS Cleanup 4.f Traction control #28609tyres & wheels
  • ITS Request OEM hardtops for IT #28272other
  • ITS Request clarification 1999 Ford Escort ZX2 S?R #26966weight -45 lbs
  • ITS Request clarification on 9.1.3 D1.A.2 #26237induction
NOLA Motorsports Park Voodoo Quartre 20172017-03-032:06.994John Phillips · fastest of 6 · top 5 within 9.4s2:06.427John Phillips · fastest of 5 · top 5 within 6.9s
No rule changes on record between these events
Circuit of St. Louis (formerly Gateway Motorsports Majors May 20162016-05-141:15.464Greg Hartrum · only car1:15.165Greg Hartrum · only car
No rule changes on record between these events
Thunderhill Raceway Park Majors @ Thunderhill2016-04-082:15.069Kyle Keenan · fastest of 22:15.714Kyle Keenan · fastest of 3 · top 3 within 4.8s

By track

TrackEvents Typical % of ITS Best Latest 
Circuit of St. Louis (formerly Gateway Motorsports1100.0%100.0%Majors May 2016100.0%Majors May 2016
Michelin Raceway Road Atlanta1100.0%100.0%SARRC 2020100.0%SARRC 2020
NOLA Motorsports Park10 of 1 with ITS
Thunderhill Raceway Park10 of 1 with ITS
About this data
Every event the class ran, at any track, oldest to newest on the chart and newest first in the table. Each point is the class's best lap as a share of ITS's best on the same day: the weather and the day cancel out, so one figure compares across years where lap times cannot; a class that suits one track more than another still reads differently there. It still moves when the yardstick's own balance changes or its field thins, and an event the yardstick did not run has no point. A best from fewer than three cars is greyed. The rule changes that took effect between two events are folded between their rows.